Intermediate
Technical
IVT
circumferential strain
A measure of myocardial deformation in the short-axis plane, representing the percentage change in circumference during the cardiac cycle.
Full Definition
Circumferential strain quantifies the shortening or lengthening of myocardial fibers oriented circumferentially around the left ventricle. This parameter is measured in the short-axis plane and expressed as a percentage, with normal values typically ranging from -15% to -25%. Circumferential strain is considered one of the most reproducible strain parameters and provides valuable information about regional and global myocardial function, particularly in conditions affecting the mid-wall myocardial layers.
Usage
Usage note: Should not be confused with radial or longitudinal strain measurements.
In Context
- "Global circumferential strain was reduced at -12%, indicating impaired myocardial function despite preserved ejection fraction." — Echocardiography report
- "The inferior wall showed abnormal circumferential strain values consistent with infarct-related dysfunction." — Strain analysis report
Also known as
CC strain
Don't confuse with
radial strain
longitudinal strain